Threading a ribbon/elastic/other through a casing:
I will start by assuming the casing is already stitched. There are many ways to make a casing, so I am reluctant to broach that subject here for brevity's sake. A casing (if done properly) will always have at least one opening, often two. I am using the casing from my changing table cover project as the example here. Since the ultimate goal of this casing is to completely enclose the elastic, there is only one opening.
To begin, you will need a safety pin that will fit through the casing. They come in many sizes, including ridiculously small to get in those hard to reach places! Take the safety pin and pin it through the end of the ribbon or elastic you are threading through the casing. You will want to pass the pin to the back and then to the front again, piercing the item twice. This gives it more material to grab on to which will prevent the material from ripping. Don't do this too close to the end if you are using a very delicate ribbon or cord as it will encourage fraying and ripping. If your ribbon or whatever is REALLY delicate, consider using a piece of tape or a dab of hot glue to reinforce the end, or fold the end in half and then pin through all the material. If the elastic/ribbon rips while you are threading it through, you will have to start over and fish the safety pin out of the middle of the casing which is annoying at best.
|I safety pinned my ends together until I could machine sew them.|